/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraParameterBinding.h
void OnRenameVariable ( const [FNiagaraVariableBase](API\Plugins\Niagara\FNiagaraVariableBase) & OldVariable, const [FNiagaraVariableBase](API\Plugins\Niagara\FNiagaraVariableBase) & NewVariable, FStringView EmitterName )